Process for making heat insulating firebricks

Details Process for making heat insulating firebricks Process for making heat insulating firebricks

1980-02-19

1981-12-22

Poer, James

Compositions: ceramic

Ceramic compositions

Refractory

106104, C04B 3502

Patent

active

043071996

ABSTRACT:
A process for manufacturing heat-insulating firebricks wherein an alumina cement, a water-soluble styrene maleic resin and water are added to a mixture containing a refractory aggregate, an inorganic binder and a granular foamed polystyrene, the resultant mixture being then kneaded and cast in a mold. The added amounts of alumina cement and water-soluble styrene maleic resin are small and water is added to an extent of not more than 50% by weight. The alumina content in the alumina cement is between 8 and 75% by weight.

REFERENCES:
patent: 3711431 (1973-01-01), Vargiu et al.
patent: 3733285 (1973-05-01), Steffy
patent: 3883359 (1975-05-01), Harvey

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